On the 13th gen CPU, I found there is a pretty big different in heat (and noise) when using the credit scheduler, compared to credit2.
Not sure exactly how credit2 picks what cores to use, but it seemed to heavily favor the high end. Using mostly E cores, and few P cores, seemed to result in some cores getting a lot hotter, which then made the CPU fans run at a higher RPM.
For someone who is focused on PC noise, the difference between credit and credit2 was very noticeable.